The ornamental design for an alienfigurine, as shown and described.
FIG. 1 is a front view of an alien figurine;
FIG. 2 is a rear view of an alien figurine;
FIG. 3 is a right side elevation of the alien figurine, the left side
elevation is a mirror image thereto except for the position of the hands,
arms and hair;
FIG. 4 is a bottom view of an alien figurine; and,